error in MicrosoftAjax.js: Cannot read property '_notified' of null

One one page I have a dynamically built table with two DropDownLists and CascadingDropDown extenders. Maybe the only thing special about the drop down lists is, that I add a "onChange" for the second drop down list in each row which shows or hides the list depending on the value populated from the web services.

All of this works perfectly in IE7 and Firefox, but Chrome does not execute the JavaScript in the onChange attribute and the error console says:

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In model I have:[DisplayName("ISBN")]
[Required(ErrorMessage = "ISBN is required.")]
[StringLength(50, ErrorMessage = "ISBN book must have max {1} chars.")]
[DisplayFormat(ConvertEmptyStringToNull = false)]
public string isbn { get; set; }But when I submit form with empty field ISBN I have an error - ConstraintException: This property cannot be set to a null value.I have find that other people have the same problem and they say that debbugger in VS2010 works wrong - yes ?http://p2p.wrox.com/book-professional-asp-net-mvc-2/79788-constraintexception-unhandled-user-code.html#post259245http://efreedom.com/Question/1-3129080/Server-Side-Validation-REQUIRED-String-Property-MVC2-Entity-Framework-Workhttp://mvcmusicstore.codeplex.com/workitem/6604

Hi,
In a dynamic data web application, I get a validation error on a non-null nvarchar(50) column in ListDetails.aspx, even though I have entered a value which should be accepted. The validation error is: "This property cannot be set to a null value.".
I can not reproduce this on northwind/adventureworks.
Any ideas?
UPDATE: I have created a complete test case: http://printf.no/DynamicDataBugTest.zip (The archive was scanned with the latest AVG definitions before uploading to my private secure dedicated FreeBSD server)
The test case contains:
One Dynamic Data Web App project
One MS SQL Server 2005 database backup which contains a single table with three columns
One screenshot showing how the error manifests itself
I am fairly convinced now that this is a reproducible DD bug.
-Andreas

'System.Web.Mvc.HtmlHelper<object>' has no applicable method named
'GoogleAjax' but appears to have an extension method by that name.
Extension methods cannot be dynamically dispatched. Consider casting the
dynamic arguments or calling the extension method without the extension
method syntax.

What is strange is that it works fine using:

@Html.GoogleAjax("123", new String[,] { { "jquery", "1.4.2" } })

I tried the following code line:

@View.GoogleAjaxKey

And the key is displayed just fine so the problem is how I use the value of @View.GoogleAjaxKey into Html.GoogleAjax.

I've read up on this error from other posts and on other sites, but haven't found a solid resolution to the issue yet. My setup is as follows:

I have a RepositoryBase class that fields certain db calls that all repositories need to perform. In one such call, "GetSecurityGroup", it works most of the time, but will seemingly at random throw an exception with the error "Invalid attempt to call Read when reader is closed." All other Repository classes inherit from this one, and they all use the same DataContext object, which I understand isn't thread safe. Since there could be multiple calls to the DataContext object on the same page, perhaps one is using the DataContext when the next tries to do so. I'm not sure. What can I do to ensure this doesn't happen?

We can open the files in word/excel etc, but when we go to check-in the document the application tells us that we only have read access to the document, and cant check the document back in to the server.

It works fine via the browser, the read only problem is only when checking out through outlook.

I have given all users full access and design access to the doc library.

Hello,
I am facing the following mystery:
When changing the read only property of a column to false and reopening the "edit columns" window, it mysteriously turns back to true.
Even when closing the designer and changing it in the designer code, the resulting execution does not allow edit, as well as when re-opening the designer you see true again.
this.numberDataGridViewTextBoxColumn1.DataPropertyName = "Number";
this.numberDataGridViewTextBoxColumn1.HeaderText = "Number";
this.numberDataGridViewTextBoxColumn1.Name = "numberDataGridViewTextBoxColumn1";
this.numberDataGridViewTextBoxColumn1.ReadOnly = true;//False is required
We thought it might be related to data binding. rebinding the grid did not help as well.
The is no other place in the code where it changes.
Please advice,
Thanks

I'm using Entity Framework. The following code throws a runtime error "System.NullReferenceException: Object reference not set to an instance of an object." The line before the error, it looks like newControl is in fact instantiated.My model has a Control entity and a ControlType entity. Control includes the Navigation Property "ControlType." I'm trying to set ControlType.Type = 2.SurveyFormControlsModel.Control newControl = new SurveyFormControlsModel.Control();
newControl = CreateControl(childTokenName, ControlTypeEnum.TextBox);
newControl.ControlType.Type = 2; // <<--ERROR HERE
context.Controls.AddObject(newControl); SurveyFormControlsModel.Control newControl = new SurveyFormControlsModel.Control();
if (listItems.Count == 0)
{
newControl = CreateControl(childTokenName, ControlTypeEnum.TextBox);
&

I have an activity that has properties that look something like this (they're set up as proper dependency properties, I just kept it simple here):
public List<MyType> TypeList { get; set; }public Int32 Index { get; set; }public MyType SelectedType { get; set; }
and an execution that just does this:
SelectedType = TypeList[Index];
TypeList and Index are values that I set from other activities. I don't set SelectedType to anything in the activity properties, I just let it get set in the execution.
Now I know for a fact that SelectedType is getting set properly, I can even point another activity to it and print out some values from it. So I'm quite positive that there's nothing wrong with that activity.
However, I have an if activity with a condition that looks like this:
((MyActivity)GetActivityByName("activity1")).SelectedType != null
and it evaluates to false (meaning it evaluated SelectedType as null). I'm pretty sure that that activity cast is correct (I do things like that all the time), and if it weren't wouldn't I get a null reference exception when trying to access SelectedType?
So I'm pretty sure I'm not doing anything wrong here, but for some reason SelectedType is coming up null in that condition and no where else.
It's almost as if the condition is being evaluated before the activity is being run, but the activity comes well before the condi

Here is a site with content organiser site feature enabled, as well as the email integration feature.
Emails are successfully delivered to the "Submitted Email Records" list, but is never routed to the Drop Off Library. (the content organiser web service works fine and the drop off library works as a custom send to destination and happily processes its rules.
If I turn up the debug juice I get the error "Cannot resolve mailbox (null) to a valid user" for every item in any "Submitted Email Records" in the site collection.
Area: Document managagement Category: Content organiser EventID: 8000 Message: Cannot resolve mailbox (null) to a valid user
I have temporarily worked around the problem by email enabling the drop off library but it creates an intermittent race condition (similar to certain workflow and event receiver situations), so its not a real solution (and in fact I assume thats why
the Submitted Email Records hidden list exists in the first place).
I've run procmon, specifically focusing on OSWTIMER and nothing interesting shows up at all.
The error message is intriguing and I can't really think of what it is trying to do. In troubleshooting I noted that this farm had configured inbound email but not outbound email. I have since rectified this and de/reactivated the content organiser features
and reset the timer service and IIS, b